EP2307644B1 - Folding cover - Google Patents

Description

The invention relates to a folding lid according to the preamble of claim 1. In the closed position of the folding lid, the lid elements are arranged one above the other. When transferring the folding lid in the open position, the first lid member is pivoted upward from the body, wherein the second lid member is also hinged up to the body, so that the folding lid is folded.

Such a folding lid shows EP 1 705 328 A1 , In this cover plate, a connection of the first support arm to the first control arm via a gear connection is required to achieve a clear kinematics of the first cover element.

GB 2 274 302 A discloses a window that is arranged to open upwards and has two window elements that are pivotally connected to each other about a folding axis. The window comprises a connecting element which connects the upper window element to the window frame. Further, a control arm is provided between the window frame and the lower window member. The connecting element comprises two support arms, which intersect in the open position of the window.

WO 2005/075778 A1 discloses a folding lid having an upper first cover element and a lower second cover element, wherein the upper first cover element is connected via a hinge with a body. The two cover elements are pivotally connected to each other via a hinge. The lower cover element is connected to the carcass via a cover plate, the cover plate comprising a drive which can move the folding cover upwards via the lower second cover element.

DE 298 08 185 U1 discloses a folding lid with a first lid member and a second lid member, which are pivotally connected together. On the body, a cover plate (gas spring) is provided, which serves to lift the folding lid. The first cover element is connected to the body via a hinge. The kinematics of the first cover element is thus predetermined via the hinge. The second cover element is pivotally attached via a hinge, which is guided vertically on a rail of the body.

US 3,698,464 shows a folding lid with a first lid member which is connected via hinges with a body, and a second lid member which is pivotally connected to the first lid member. A control arm is both pivotally mounted on the body and pivotally mounted on the second cover member. To lift the lid member is a cover plate in the form of a gas spring, which is pivotally mounted on the one hand on the body and on the other hand pivotally mounted on a support arm which is fixedly mounted on the first cover member.

Another folding lid is from the DE 101 45 856 B4 known. In the case of the folding cover described there, the upper first cover element is fastened directly to the carcass via hinges. A lid plate is attached to the body and has a driven actuator arm which is pivotally mounted on the body and pivotally attached to the lower second lid member.

Object of the present invention is to propose a folding lid, which is simple.

The object is achieved according to the invention by a folding lid according to claim 1.

Through this solution, hinges between the upper first cover member and the body can be saved. The first cover element is connected exclusively via the at least one cover plate with the body. The cover plate is in this case constructed such that it predetermines the kinematics, that is to say the sequence of movement, of the first cover element in its movement between the closed position and the open position.

The arrangement of the support arms to each other so that they intersect in the open position of the folding lid, there is a particularly good support of the folding lid to keep this over a large angle range in any position. The support arms are therefore not arranged parallel to each other. That is, an imaginary first plane including the first body axis and the first lid axis and an imaginary second plane including the second body axis and the second lid axis intersect at an axis of rotation. Around this axis of rotation, the lid rotates, with the axis of rotation moves in space. In the open position, the axis of rotation is arranged between the first body axis and the first lid axis or between the second body axis and the second lid axis, so that the support arms intersect.

Preferably, the cover plate comprises a multi-link linkage, such as a four-bar linkage. Thus, over the cover plate certain relative positions of the first cover element and the body can be specified.

To allow the folding lid to be either e. After exceeding a certain intermediate position between the closed position and the open position is automatically moved automatically into the open position or held in any position between the intermediate position and the open position, a power drive can be provided, the at least over a part of the pivoting of the Closed position applied to the open position in the direction of the open position.

• einen Hebel, der um eine Schwenkachse schwenkbar am ersten Beschlagteil befestigt ist,
• einen Stellarm, der mit Abstand zur Schwenkachse schwenkbar mit dem Hebel verbunden ist und der um eine dritte Deckelachse schwenkbar am zweiten Beschlagteil befestigt ist, sowie
• einen Kraftantrieb, der den Hebel in einer ersten Schwenkrichtung mit Kraft beaufschlagt.

The cover plate may further comprise:

• a lever which is pivotally mounted about a pivot axis on the first fitting part,
• an actuating arm, which is connected at a distance to the pivot axis pivotally connected to the lever and which is fastened to a third cover axis pivotally mounted on the second fitting part, and
• a power drive, which acts on the lever in a first pivoting direction with force.

It has been found that by the arrangement of the lever, which is acted upon by a power drive, the actuating arm exerts a torque on the folding lid that holds this over a large pivoting range of the folding flap in any position.

Here, the body axes, the lid axes and the pivot axis are parallel arranged to each other.

The power drive may include in concrete a spring accumulator, which is supported on the one hand against the first fitting part and on the other hand against the lever. The spring accumulator may have a compression spring element. The spring accumulator then preferably has a base element, which is arranged pivotably on the body-side first fitting part. On the base element, a locking slide is guided axially, wherein at least one compression spring element is supported on the one hand against the base element and on the other hand against the locking slide and acts on the locking slide in the direction of an extended position. The lock slider is then hinged to the lever.

In order to use one and the same cover plate for different folding lid, in particular folding lid of different weight, can be provided adjusting means for adjusting the force application point at which the spring accumulator acts on the lever.

The adjusting means may comprise an adjusting lever which is pivotally mounted on the lever and which is fixable in different pivotal positions relative to the lever, wherein on the adjusting lever of the spring accumulator is pivotally mounted and is supported against it. Thus, the lever is indirectly applied via the adjusting lever with force. In principle, it is also conceivable that the force application point is linearly adjustable. For this purpose, for example, a spindle nut unit would be conceivable.

Preferably, the lever has a first lever portion extending from the pivot axis and a second lever portion opposite to the first lever portion extending from the pivot axis, wherein the actuating arm is pivotally mounted on the first lever portion and engages the power drive on the second lever portion. The lever is thus designed as a rocker, which deflects the force from the power drive to the actuating arm.

For pivotal mounting of the lever, this has a central bore, with which it is rotatably mounted on a pin, wherein the pin is connected to the body-side first fitting part.

It can be provided that the lever has a slot which emanates from an outer contour of the lever, starting in the central bore. The slot is arranged such that upon initiation of a force from the actuator arm and the spring accumulator on the lever, the lever with the wall defining the central bore is more strongly braced on the trunnion. Thus, depending on the strength of the forces introduced, the wall is pressed more strongly onto the journal, so that a higher frictional force results. When you open the lid, the force transmitted to the lever is larger, so that a greater friction and ensures even with a slight balance of power between the power drive and the force acting on the lever due to the weight of the folding lid, that the folding lid held in any position. Thus, holding the folding lid in any position is possible over a larger pivoting of the folding lid.

The cover plate may have a damper that dampens the pivotal movement of the folding lid until it reaches the closed position. Here, the damper is preferably arranged such that the pivoting movement of the folding lid is attenuated when closing shortly before reaching the closed position and previously over the largest pivoting angle range an undamped pivoting of the folding lid is possible.

The damper may include a housing connected to the first support arm, wherein a slider is axially adjustable relative to the housing, and wherein the slider is urged to an extended position with force. A stop element is fastened to the first fitting part, with the slide approaching the stop element during the transfer of the folding cover into the closed position until it comes into contact with it and is transferred to an inserted position.

Since the damper is attached to the first support arm, this is pivoted about the first body axis. The stop element has a stop surface which surrounds the first body axis is curved, wherein the course of the stop surface can be adapted to the desired movement of the folding lid. The damping characteristic, that is, via which pivot angle range of the folding lid is damped and to what extent it is damped, can be varied by changing the course of the stop surface.

Figur 1

einen Längsschnitt eines Schranks mit einem erfindungsgemäßen Faltdeckel in seiner Offenstellung;

Figur 2

einen Längsschnitt eines Schranks gemäß Figur 1 mit einem Faltdeckel in seiner Schließstellung;

Figur 3

eine Seitenansicht des Deckelstellers in Offenstellung sowie einen Ausschnitt der Seitenwand;

Figur 4

eine Seitenansicht des Deckelstellers gemäß Figur 3 in einer Zwischenstellung;

Figur 5

eine Seitenansicht des Deckelstellers gemäß Figur 3 in Schließstellung und

Figur 6

eine Seitenansicht der von der in Figur 3 entgegen gesetzten Seite des Deckelstellers in Offenstellung.

The invention will be explained in more detail below with reference to the drawings. Show here

FIG. 1

a longitudinal section of a cabinet with a folding lid according to the invention in its open position;

FIG. 2

a longitudinal section of a cabinet according to FIG. 1 with a folding lid in its closed position;

FIG. 3

a side view of the Deckelstellers in the open position and a section of the side wall;

FIG. 4

a side view of the cover plate according to FIG. 3 in an intermediate position;

FIG. 5

a side view of the cover plate according to FIG. 3 in closed position and

FIG. 6

a side view of the in FIG. 3 opposite side of the Deckelstellers in the open position.

FIGS. 1 and 2 show the folding lid in different positions and are described together below. Shown is a body 2 with a top bottom 43, a side wall 44, a rear wall 45 and a bottom 46. On the side wall inside a lid plate 47 is fixed, via which a first lid member 4 is pivotally connected to the body 2. The cover plate 47 in this case represents the only connecting link between the first cover element 4 and the body 2 The first cover element 4 together with a second cover element 42 is part of a folding lid, wherein the second lid element 42 is pivotably connected to the first lid element 4 via a hinge 48 about a folding axis 49. Via a handle 54 which is attached to the second cover member 42, the folding lid between the in FIG. 1 shown open position and in FIG. 2 move shown closed position. In the closed position, the two cover elements 4, 42 are arranged one above the other in a plane and close the body. The first cover element 4 is arranged in the closed position over the second cover element 42.

Further, a control arm 50 is provided which is pivotally connected to a first control axis 51 on the side wall 44 of the body 2 and about a second control axis 52 to a fitting 53 of the second cover member 42 pivotally. The folding axis 49 and the two control axes 51, 52 are hereby spaced and arranged parallel to each other.

The FIGS. 3 to 6 show the lid plate 47 in different views and different positions and are described together below.

The cover plate 47 has a first fitting part 1, which, as in FIG. 3 shown attached to an inside of the body 2. Furthermore, the cover plate 47 comprises a second fitting part 3, which, as likewise in FIG FIG. 3 is shown attached to the first cover member 4 of the folding lid. The first cover element 4 is connected exclusively via the cover plate 47 with the body 2 and has no hinges. As will be explained later, the first lid member pivots about an axis that moves in space and depends on the structure of the lid plate 47.

The cover plate 47 has a first support arm 5 and a second support arm 6 for connecting the first cover element 4 to the carcass 2. The first support arm 5 is pivotally attached via a first body axis 7 on the body-side first fitting part 2 and about a first lid axis 8 pivotally mounted on the cover-side second fitting part 3. The second support arm 6 is pivotable about a second body axis 9 on the body-side first fitting part 2 and about a second lid axis 10 pivotally mounted on the cover-side second fitting part 4.

The support arms 5, 6 are not arranged parallel to each other. This means that a first plane 29, which includes the first body axis 7 and the first lid axis 8, and a second plane 30, which includes the second body axis 9 and the second lid axis 10, intersect in a rotation axis 11. About this axis of rotation 11, the first cover member 4 rotates, wherein the axis of rotation 11 moves in space, as shown in the FIGS. 3 to 5 can be seen.

So that the first cover element 4 is held over as large a pivoting range as possible in any position, a drive is provided. This comprises a power drive in the form of a spring accumulator 12. The spring accumulator 12 has a base member 14 which is pivotally mounted about a bearing axis 13 on the body-side first fitting part 2. On the base member 14, a locking slide 15 is held axially adjustable along an adjustment 16. The lock slider 15 is acted upon by means of compression springs 17, which are supported on the one hand against the base member 14 and on the other hand against the lock slider 15, in the direction of an extended position with force. Thus, the compression springs 17 do not bend transversely to the adjustment axis 16, a mandrel 18 is provided on the locking slide 15 per compression spring 17 which dive into the turns of the coil springs designed as compression springs 17 and support the respective compression spring 17 against lateral bulging.

The drive further comprises a lever 19 which is rotatably mounted on a pin 22 which is connected to the body-side first fitting part, about a pivot axis 20. For this purpose, the lever 19 has a central bore 21, with which the lever 19 is placed on the pin 22. The lever 19 is designed like a rocker and has an outgoing from the pivot axis 20 and approximately radially extending first lever portion 23 and a first lever portion 23 opposite set second lever portion 24, which also extends from the pivot axis 20, starting approximately radially.

At the first lever portion 23 is an actuating arm 26 about a third body axis 27th pivotally connected to the lever 19, wherein the third body axis 27 spaced from the pivot axis 20 is arranged. The actuating arm 26 is also fastened to the cover-side second fitting part 4 so as to be pivotable about a third cover axis 28.

The adjusting slide 15 of the spring accumulator 12 acts indirectly via an adjusting lever 25 on the second lever portion 24 of the lever 19 a. The adjustment lever 25 is fixed in different rotational positions relative to the lever 19 at this. The lock slider 15 is freely pivotally mounted on the adjustment lever 25. The force action line of the spring accumulator 12, which corresponds to the adjustment axis 16, is aligned in such a way that a clockwise torque as shown in the FIG. 3 is generated on the lever 19. The actuator arm 26 is arranged to counterclockwise a torque as shown in FIG FIG. 3 generated on the lever 19. In this case, it is ensured over the largest possible pivoting range of the first cover element 4 that the torques which are exerted on the lever 19 by the spring accumulator 12 and the first cover element 4 cancel each other out, ie are in equilibrium, so that the first cover element 4 in FIG the respective pivot position is held. The pivoting range, in which the first cover element 4 is held in each pivot position, preferably extends from the open position according to FIG. 1 to a dead center position, in which the line of action 39 of the actuator arm 26, along the force from the actuator arm 26 is introduced to the second fitting part 3, with the axis of rotation 11 intersects (this corresponds approximately to the pivoting position in FIG FIG. 4 ).

Over the pivoting angle range from the open position to the dead center position, the force action line 39 of the actuating arm 26 intersects the axis of rotation 11 about which the first cover element 4 rotates so far that a clockwise torque as shown in FIG FIG. 3 is generated on the first cover element 4. The generated torque thus acts on the first cover element 4 in the direction of the open position with torque. In the dead center position of the first cover element 4, the force action line 39 of the actuating arm 26 intersects the axis of rotation 11, so that no torque is exerted on the first cover element 4 by the actuating arm 26. Over the swivel angle range from the dead center position to the closed position, the force action line 39 of the actuating arm 26 crosses the axis of rotation 11 so far, that a torque in the counterclockwise direction as shown FIG. 5 is generated on the first cover element 4. The generated torque thus acts on the first cover element 4 in the direction of the closed position with torque. Thus acts in a swivel angle range shortly before reaching the closed position, a tightening torque on the first cover member 4, so that the first cover member 4 is securely held in the closed position.

For adjusting the torque exerted by the spring accumulator 12 on the lever 19, the adjusting lever 25 is pivotally mounted about an adjustment axis 33 on the lever 19. The distance between the connection point of the spring accumulator 12 on the adjusting lever 25 and the pivot axis 19 can thus be adjusted. The effective lever arm, with the spring memory 12 torque is generated on the lever 19, can be changed.

To adjust the position of the adjusting lever 25 is an adjusting screw 31 which is screwed into a threaded bore 32 of the lever 19. The adjustment screw 31 serves as a stop for the adjustment lever 25. The line of action (adjustment axis 16) of the spring accumulator 12 is aligned such that the adjustment lever 25 in the counterclockwise direction as shown in FIG FIG. 3 is acted upon by a torque. The adjusting screw 31 supports the adjusting lever 25 against rotation in the counterclockwise direction. By adjusting the depth of engagement of the adjusting screw 31 within the threaded bore 32, the position of the stop, which is here represented by the free end of the adjusting screw 31, and thus change the pivot position of the adjusting lever 25. In principle, the adjusting lever 25 can of course also be acted upon in the other direction with torque and the adjusting screw 31 corresponding to the adjusting lever 25 supported in the other direction. Also conceivable are locking means which fix the adjusting lever 25 completely on the lever 19.

The lever 19 has a slot 40 which extends radially from an outer contour 41 of the lever 19 to the pivot axis 20 and opens into the central bore 21. The slot 40 is disposed on the side facing away from the spring 12 and the actuator arm 26 of the lever 19. Thus, when force is introduced by the spring accumulator 12 and the actuator arm 26 on the lever 19 of the lever 19 so slightly deformed that the central bore 21 narrows. Thus, the lever 19 and the wall of the central bore 21 is tensioned on the pin 22. The frictional force between the wall of the central bore 21 and the pin 22 is thus increased. This is to ensure that the first cover member 4 is held over a certain pivot angle range in any position, even if the torques acting on the lever 19 from the actuator arm 26 due to the dead weight of the first cover member 4 and the spring accumulator 12, not cancel exactly.

On the first support arm 5, a damper 34 is provided. Preferably, it is a damper 34 having a housing 35 which is connected to the first support arm 5. In the housing 35, a slider 36 is held axially adjustable, the slider 36 to a in FIG. 3 shown ejected position is acted upon with force. For this purpose, serve spring means which are arranged in the housing 35 and on the one hand against the housing 35 and on the other hand against the slide 36 are supported. On the body-side first fitting part 2, a stop element 37 is fastened, which has a stop face 38. In the open position ( FIG. 3 ) of the first cover element 4, the slider 35 is not in contact with the stop surface 38. When transferring the first cover element 4 into the closed position (FIG. FIG. 5 ), the slider 36 approaches the abutment surface 38 until it comes to this in abutment. The slider 36 preferably comes into abutment with the abutment surface 38 only when the first cover element 4 is between the dead center position and the closed position, ie when a tightening torque is exerted on the first cover element 4. After the slider 36 has come into abutment with the stop surface 38, the slider 36 is inserted into the housing 35 against the spring force during further pivoting of the first cover member 4 until reaching the closed position, so that the suit of the first cover member 4 to the body. 2 is dampened. The damper 34 may include further damping means. For example, the damper may be designed as a hydraulic damper.

LIST OF REFERENCE NUMBERS

1

first fitting part

2

corpus

3

second fitting part

4

first cover element

5

first support arm

6

second support arm

7

first carcass axis

8th

first lid axis

9

second body axis

10

second lid axis

11

axis of rotation

12

spring

13

bearing axle

14

base element

15

lock slider

16

adjustment axis

17

compression spring

18

mandrel

19

lever

20

swivel axis

21

central hole

22

spigot

23

first lever section

24

second lever section

25

adjustment

26

actuating arm

27

third body axis

28

third lid axis

29

first floor

30

second level

31

adjustment

32

threaded hole

33

adjustment axis

34

damper

35

casing

36

pusher

37

stop element

38

stop surface

39

Force action line of the actuator arm

40

slot

41

outer contour

42

second cover element

43

topsoil

44

Side wall

45

rear wall

46

ground

47

cover plate

48

hinge

49

fold axis

50

control arm

51

first control axis

52

second control axis

53

fitting

54

Handle

Claims (15)

1. Folding lid, which is arranged opening upwards and is attachable in a displaceable manner between an open position and a closed position on a cupboard body, comprising
   an upper first lid element (4),
   a lower second lid element (42), which is pivotably connected around a folding axis (49) to the first lid element (4),
   at least one lid stay (47) with a first support arm (5), which is pivotably mounted around a first body axis (7) on a first fitting member (1) attachable on the body (5) and which is pivotably attached around a first lid axis (8) on a second fitting member (3) attached on the first lid element (4), as well as at least one control arm (50), which is pivotably attached around a first control axis (51) on the body (2) and which is pivotably attached around a second control axis (52) on the second lid element (42),
   wherein the first lid element (4) is pivotably attached by means of the at least one lid stay (47) on the body (2) and wherein the at least one lid stay (47) represents the only connection element determining the kinematics of the first lid element (4) between the first lid stay (4) and the body (2),
   wherein the lid stay (47) comprises a second support arm (6), which is pivotably attached around a second basic shell axis (9) on the first fitting member (1) and which is pivotably attached around a second lid axis (10) on the second fitting member (3), and
   wherein in the open position of the folding lid the first support arm (5) and the second support arm (6) intersect each other, wherein a first plane (29), formed by the first body axis (7) and the first lid axis (8), intersects a second plane (30), formed by the second body axis (9) and the second lid axis (10), in an axis of rotation (11).
2. Folding lid according to claim 1,
   characterised in
   that the lid stay (47) comprises a multi-element linkage.
3. Folding lid according to one of claims 1 or 2,
   characterised in
   that the lid stay (47) has a power drive (12), which acts on the first lid element (4) at least over a portion of the pivot path from the closed position to the open position in direction towards the open position.
4. Folding lid according to one of claims 1 to 3,
   characterised in
   that the lid stay (47) comprises the following:

   a lever (19), which is pivotably attached around a pivot axis (20) on the first fitting member (1),

   a setting arm (26), which is pivotably connected to the lever (19) at a distance to the pivot axis (20) and which is pivotably attached around a third lid axis (29) on the second fitting member (3), as well as

   a power drive (12), which acts with a force onto the lever (19) in a first pivot direction.
5. Folding lid according to claim 4,
   characterised in
   that the body axes (7, 9), the lid axes (8, 10) and the pivot axis (20) are arranged parallel to each other.
6. Folding lid according to one of claims 4 to 5,
   characterised in
   that the power drive comprises a spring accumulator (12), which is supported on the first fitting member part (1) and on the lever (19).
7. Folding lid according to claim 6,
   characterised in
   that the spring accumulator (12) comprises a compression spring element (17).
8. Folding lid according to one of claims 6 or 7,
   characterised in
   that adjustment means (25) are provided for adjusting the force impact point, at which the spring accumulator (12) acts on the lever (19).
9. Folding lid according to claim 8,
   characterised in
   that the adjustment means comprise an adjustment lever (25), which is pivotably attached on the lever (19) and which can be fixed in different pivot positions relative to the lever (19) and
   that the spring accumulator (12) is pivotably attached on the adjustment lever (25).
10. Folding lid according to one of claims 4 to 9,
    characterised in
    that the lever (19) has a first lever portion (23) starting from the pivot axis (20) and a second lever portion (24), opposed to the first lever portion (23) and starting from the pivot axis (20), wherein the setting arm (26) is pivotably attached on the first lever portion (23) and the power drive (12) engages the second lever portion (24).
11. Folding lid according to claim 10,
    characterised in
    that the lever (19) has a central bore (21), with which it is rotatably supported on a pin (22), wherein the pin (22) is connected to the first fitting member (1).
12. Folding lid according to claim 11,
    characterised in
    that the lever (19) has a slot (40), which, starting from an outer contour (41) of the lever (19), ends in the central bore (21).
13. Folding lid according to claim 12,
    characterised in
    that the slot (40) is arranged such, that, when introducing a force by the setting arm (26) and by the spring accumulator (12) onto the lever (19), the lever (19) is clamped with the wall, which delimits the central bore (21), onto the pin (22).
14. Folding lid according to one of claims 4 to 9,
    characterised in
    that a damper (34) is provided, which dampens the pivot movement of the folding lid till reaching the closed position.
15. Folding lid according to claim 14,
    characterised in
    that the damper (34) has a housing (35), which is connected to the first support arm (5),
    that a slider (36) is axially displaceable relative to the housing (35), wherein the slider (36) is acted upon by a force towards the extended position, and that an abutment element (37) is attached on the first fitting member (1), wherein the slider (36), when moving the folding lid into the closed position, approaches the abutment element (37), till it abuts it and is moved into a retracted position.

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